InfluxDB｜How to visualize data in InfluxDB 2.0 through Grafana Dashboard

Grafana、InfluxDB、Telegraf 快速安裝

wget https://dl.influxdata.com/influxdb/releases/influxdb2-2.0.9.x86_64.rpm
sudo yum localinstall influxdb2-2.0.9.x86_64.rpm

wget https://dl.influxdata.com/telegraf/releases/telegraf-1.21.1-1.x86_64.rpm
sudo yum localinstall telegraf-1.21.1-1.x86_64.rpm

wget https://dl.grafana.com/oss/release/grafana-8.3.3-1.x86_64.rpm
sudo yum localinstall grafana-8.3.3-1.x86_64.rpm

Setting Telegraf to InfluxDB v2

vim /etc/telegraf/telegraf.conf

預設 telegraf 會抓取基本的 cpu, mem, net, diskio 等，務必要將 influxdb v1
註解，並開啟 influxdb v2

Add InfluxDB datasource in Grafana

這次以 InfluxDB2 為 Datasource，所以 Query Language 務必選
Flux，如此下面設定驗證的地方，才會變為 2.0 版的參數

Create a dashboard panel

我們可以透過 Flux 語法，建立 panel，並新增至 Dashboard 中。